BR112022019079A2 - DIRECT REDUCTION PROCESS AND SYSTEM, AND PROCESS TO PRODUCE HIGH PERFORMANCE IRON - Google Patents
DIRECT REDUCTION PROCESS AND SYSTEM, AND PROCESS TO PRODUCE HIGH PERFORMANCE IRONInfo
- Publication number
- BR112022019079A2 BR112022019079A2 BR112022019079A BR112022019079A BR112022019079A2 BR 112022019079 A2 BR112022019079 A2 BR 112022019079A2 BR 112022019079 A BR112022019079 A BR 112022019079A BR 112022019079 A BR112022019079 A BR 112022019079A BR 112022019079 A2 BR112022019079 A2 BR 112022019079A2
- Authority
- BR
- Brazil
- Prior art keywords
- direct
- direct reduction
- high performance
- produce high
- iron
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 7
- 238000011946 reduction process Methods 0.000 title abstract 3
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000002844 melting Methods 0.000 abstract 3
- 230000008018 melting Effects 0.000 abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/143—Injection of partially reduced ore into a molten bath
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
- C21B13/0093—Protecting against oxidation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
- C21B13/023—Making spongy iron or liquid steel, by direct processes in shaft furnaces wherein iron or steel is obtained in a molten state
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture Of Iron (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
PROCESSO E SISTEMA DE REDUÇÃO DIRETA, E, PROCESSO PARA PRODUZIR FERRO DE ALTO DESEMPENHO. Um processo de redução direta compreende prover um forno de cuba de uma usina de redução direta para reduzir o óxido de ferro com gás redutor; prover um forno de fusão de ferro reduzido direto; e acoplar uma calha de descarga entre uma saída de descarga do forno de cuba reduzido direto e uma entrada do forno de fusão de ferro reduzido direto; em que o ferro reduzido direto e o gás redutor a partir do forno de cuba fluem através da calha de descarga e o gás redutor controla a atmosfera do forno de fusão para o ambiente redutor.DIRECT REDUCTION PROCESS AND SYSTEM, AND PROCESS TO PRODUCE HIGH PERFORMANCE IRON. A direct reduction process comprises providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; provide a direct reduced iron melting furnace; and coupling a discharge chute between a direct reduced shaft furnace discharge outlet and a direct reduced iron melting furnace inlet; wherein the direct reduced iron and reducing gas from the pot furnace flow through the discharge chute and the reducing gas controls the atmosphere from the melting furnace to the reducing environment.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202062993787P | 2020-03-24 | 2020-03-24 | |
| US17/209,706 US11788159B2 (en) | 2020-03-24 | 2021-03-23 | Integration of DR plant and electric DRI melting furnace for producing high performance iron |
| PCT/US2021/023802 WO2021195161A1 (en) | 2020-03-24 | 2021-03-24 | Integration of dr plant and electric dri melting furnace for producing high performance iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112022019079A2 true BR112022019079A2 (en) | 2022-11-29 |
Family
ID=77855548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112022019079A BR112022019079A2 (en) | 2020-03-24 | 2021-03-24 | DIRECT REDUCTION PROCESS AND SYSTEM, AND PROCESS TO PRODUCE HIGH PERFORMANCE IRON |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US11788159B2 (en) |
| EP (1) | EP4127250A4 (en) |
| CN (1) | CN115315533A (en) |
| AR (1) | AR122397A1 (en) |
| BR (1) | BR112022019079A2 (en) |
| CA (1) | CA3171742A1 (en) |
| MX (1) | MX2022011647A (en) |
| WO (1) | WO2021195161A1 (en) |
| ZA (1) | ZA202210583B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12000011B2 (en) | 2021-06-22 | 2024-06-04 | Midrex Technologies, Inc. | System and method for the production of hot briquetted iron (HBI) containing flux and/or carbonaceous material at a direct reduction plant |
| DE102021133577A1 (en) * | 2021-12-17 | 2023-06-22 | Thyssenkrupp Steel Europe Ag | Process for producing an iron-based melt in an electric melter |
| US20230287528A1 (en) * | 2022-03-11 | 2023-09-14 | Midrex Technologies, Inc. | Hot Metal Production from DRI with Electric Arc Heating |
| WO2024023559A1 (en) * | 2022-07-29 | 2024-02-01 | Arcelormittal | A method for manufacturing molten pig iron into an electrical smelting furnace |
| WO2024023560A1 (en) * | 2022-07-29 | 2024-02-01 | Arcelormittal | A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2844056C3 (en) * | 1978-10-10 | 1981-08-13 | Mannesmann AG, 4000 Düsseldorf | Method and device for the production of steel from iron ore dust by direct reduction |
| JPS6246186A (en) | 1985-08-23 | 1987-02-28 | 株式会社 環境総研コンサルタント | Method of adjusting ambient temperature of lowermost step shelf of preheating tower for melting furnace |
| CN1345381A (en) | 1997-08-22 | 2002-04-17 | 威廉·L·舍伍德 | Direct iron and steelmaking |
| US6685761B1 (en) | 1998-10-30 | 2004-02-03 | Midrex International B.V. Rotterdam, Zurich Branch | Method for producing beneficiated titanium oxides |
| IT1302814B1 (en) * | 1998-12-11 | 2000-09-29 | Danieli & C Ohg Sp | PROCEDURE AND RELATED INTEGRATED PLANT FOR THE PRODUCTION OF STEEL BY DIRECT REDUCTION OF IRON OXIDES |
| US6214086B1 (en) | 1999-08-20 | 2001-04-10 | Midrex International B.V. Rotterdam, Zurich Branch | Direct reduced iron discharge system and method |
| US6648942B2 (en) | 2001-01-26 | 2003-11-18 | Midrex International B.V. Rotterdam, Zurich Branch | Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus |
| CN1894426A (en) | 2003-09-30 | 2007-01-10 | 伊尔萨有限公司 | Method and apparatus for producing molten iron |
| ITMI20050731A1 (en) * | 2005-04-22 | 2006-10-23 | Danieli Off Mecc | REDUCTION OVEN |
| US7938882B2 (en) | 2007-04-02 | 2011-05-10 | Midrex Technologies, Inc. | Method and system for the supply of hot direct reduced iron for multiple uses |
| JP6476940B2 (en) | 2015-02-04 | 2019-03-06 | 新日鐵住金株式会社 | Manufacturing method of molten steel |
| WO2016148555A1 (en) * | 2015-03-13 | 2016-09-22 | Сулейман Мустафьевич ТЛЕУГАБУЛОВ | Method for the reduction smelting of steel and apparatus for carrying out said method |
| WO2016178691A1 (en) | 2015-05-07 | 2016-11-10 | Halliburton Energy Services, Inc. | Bucket conveyor system on storage/delivery system |
| ITUA20163986A1 (en) | 2016-05-31 | 2017-12-01 | Tenova Spa | METHOD AND EQUIPMENT FOR THE PRODUCTION OF CAST IRON, CAST IRON PRODUCED ACCORDING TO THAT METHOD |
| CN109929959B (en) * | 2019-03-28 | 2021-03-02 | 东北大学 | Method for producing molten iron by powdery iron ore in suspension state through direct reduction-smelting |
-
2021
- 2021-03-23 US US17/209,706 patent/US11788159B2/en active Active
- 2021-03-24 WO PCT/US2021/023802 patent/WO2021195161A1/en active Application Filing
- 2021-03-24 CA CA3171742A patent/CA3171742A1/en active Pending
- 2021-03-24 CN CN202180023170.XA patent/CN115315533A/en active Pending
- 2021-03-24 EP EP21774181.8A patent/EP4127250A4/en active Pending
- 2021-03-24 BR BR112022019079A patent/BR112022019079A2/en unknown
- 2021-03-24 MX MX2022011647A patent/MX2022011647A/en unknown
- 2021-03-25 AR ARP210100732A patent/AR122397A1/en unknown
-
2022
- 2022-09-23 ZA ZA2022/10583A patent/ZA202210583B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202210583B (en) | 2023-06-28 |
| CN115315533A (en) | 2022-11-08 |
| CA3171742A1 (en) | 2021-09-30 |
| EP4127250A4 (en) | 2024-05-29 |
| EP4127250A1 (en) | 2023-02-08 |
| AR122397A1 (en) | 2022-09-07 |
| US20210301359A1 (en) | 2021-09-30 |
| MX2022011647A (en) | 2022-10-13 |
| WO2021195161A1 (en) | 2021-09-30 |
| US11788159B2 (en) | 2023-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06W | Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette] |